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Numerical Investigations of Aerodynamic Properties of a Propeller Blown Circulation Control System on a High Wing Aircraft

Keller, Dennis and Rudnik, Ralf (2015) Numerical Investigations of Aerodynamic Properties of a Propeller Blown Circulation Control System on a High Wing Aircraft. In: 3AF - Aerodynamics 2015. Aerodynamics 2015, 30. März - 1. April 2015, Toulouse, Frankreich.

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Abstract

The contribution gives an overview over the wide range of CFD simulations, which were performed in the course of the German collaborative research center 880 in order to investigate the aerodynamic properties of a complete aircraft landing configuration with a circulation control high-lift system and turboprop engines. The main purpose is to highlight the integration aspects of lift augmentation technologies into the design of a short take-off and landing aircraft concept. Therefore, the influence of engine nacelles and thrust on the stall behavior and the following improvements due to the use of a nacelle strake are discussed. Furthermore, static longitudinal and lateral stability as well as the dynamic longitudinal stability are investigated. While circulation control itself has a rather small impact, the impact of engine thrust in conjunction with circulation control is considerable. Additionally, the one engine inoperative case was simulated. For some flow and engine conditions, the resulting yawing moments are more than twice as high as the actual yawing moments due to asymmetric thrust and thus are higher than expected.

Item URL in elib:https://elib.dlr.de/98412/
Document Type:Conference or Workshop Item (Speech)
Title:Numerical Investigations of Aerodynamic Properties of a Propeller Blown Circulation Control System on a High Wing Aircraft
Authors:
AuthorsInstitution or Email of AuthorsAuthors ORCID iD
Keller, Dennisdennis.keller (at) dlr.deUNSPECIFIED
Rudnik, Ralfralf.rudnik (at) dlr.deUNSPECIFIED
Date:March 2015
Journal or Publication Title:3AF - Aerodynamics 2015
Refereed publication:Yes
Open Access:No
Gold Open Access:No
In SCOPUS:No
In ISI Web of Science:No
Status:Published
Keywords:Aerodynamics, CFD, RANS, High-Lift, Circulation Control, Engine Integration, Propeller, Dynamic Derivatives, Longitudinal Stabiliy, Lateral Stability
Event Title:Aerodynamics 2015
Event Location:Toulouse, Frankreich
Event Type:international Conference
Event Dates:30. März - 1. April 2015
Organizer:3AF
HGF - Research field:Aeronautics, Space and Transport
HGF - Program:Aeronautics
HGF - Program Themes:fixed-wing aircraft
DLR - Research area:Aeronautics
DLR - Program:L AR - Aircraft Research
DLR - Research theme (Project):L - Flight Physics
Location: Braunschweig
Institutes and Institutions:Institute of Aerodynamics and Flow Technology > Transport Aircraft
Deposited By: Keller, Dennis
Deposited On:08 Oct 2015 08:58
Last Modified:10 May 2016 23:31

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